I keep getting a marital status warning in the review stage of the filing, and when I make the correction from "married" to "common law" nothing saves, warning remains

Are you preparing your return together with your spouse/partner or separately?

together. it will not allow me to change his response from "married" to "common law" and i don't want this to be why we have issues with our filing. 

If you are preparing your returns together, changing the marital status option will change it for both of you. 

If it's not allowing you to make the change, please clear your browser cache (or use a different browser) and try again. If you are still not able to resolve this issue, please contact our phone support team for more assistance.